file: Add READ_SYMLINK sub-command

8 files changed, 33 insertions, 0 deletions

diff --git a/Tests/RunCMake/file/READ_SYMLINK-noexist-result.txt b/Tests/RunCMake/file/READ_SYMLINK-noexist-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-noexist-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/file/READ_SYMLINK-noexist-stderr.txt b/Tests/RunCMake/file/READ_SYMLINK-noexist-stderr.txt
new file mode 100644
index 0000000..32b3e85
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-noexist-stderr.txt
@@ -0,0 +1,6 @@
+^CMake Error at READ_SYMLINK-noexist\.cmake:[0-9]+ \(file\):
+  file READ_SYMLINK requested of path that is not a symlink:
+
+    .*/Tests/RunCMake/file/READ_SYMLINK-noexist-build/rel\.sym
+Call Stack \(most recent call first\):
+  CMakeLists\.txt:[0-9]+ \(include\)$
diff --git a/Tests/RunCMake/file/READ_SYMLINK-noexist.cmake b/Tests/RunCMake/file/READ_SYMLINK-noexist.cmake
new file mode 100644
index 0000000..9e57e4b
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-noexist.cmake
@@ -0,0 +1 @@
+file(READ_SYMLINK "${CMAKE_CURRENT_BINARY_DIR}/rel.sym" result)
diff --git a/Tests/RunCMake/file/READ_SYMLINK-notsymlink-result.txt b/Tests/RunCMake/file/READ_SYMLINK-notsymlink-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-notsymlink-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/file/READ_SYMLINK-notsymlink-stderr.txt b/Tests/RunCMake/file/READ_SYMLINK-notsymlink-stderr.txt
new file mode 100644
index 0000000..63e32ed
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-notsymlink-stderr.txt
@@ -0,0 +1,6 @@
+^CMake Error at READ_SYMLINK-notsymlink\.cmake:[0-9]+ \(file\):
+  file READ_SYMLINK requested of path that is not a symlink:
+
+    .*/Tests/RunCMake/file/READ_SYMLINK-notsymlink-build/rel\.sym
+Call Stack \(most recent call first\):
+  CMakeLists\.txt:[0-9]+ \(include\)$
diff --git a/Tests/RunCMake/file/READ_SYMLINK-notsymlink.cmake b/Tests/RunCMake/file/READ_SYMLINK-notsymlink.cmake
new file mode 100644
index 0000000..a9798b6
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK-notsymlink.cmake
@@ -0,0 +1,2 @@
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/rel.sym" "")
+file(READ_SYMLINK "${CMAKE_CURRENT_BINARY_DIR}/rel.sym" result)
diff --git a/Tests/RunCMake/file/READ_SYMLINK.cmake b/Tests/RunCMake/file/READ_SYMLINK.cmake
new file mode 100644
index 0000000..865a2e9
--- /dev/null
+++ b/Tests/RunCMake/file/READ_SYMLINK.cmake
@@ -0,0 +1,13 @@
+execute_process(COMMAND
+  ${CMAKE_COMMAND} -E create_symlink "test.txt" "${CMAKE_CURRENT_BINARY_DIR}/rel.sym")
+file(READ_SYMLINK "${CMAKE_CURRENT_BINARY_DIR}/rel.sym" result)
+if(NOT result STREQUAL "test.txt")
+  message(SEND_ERROR "Relative symlink is \"${result}\", should be \"test.txt\"")
+endif()
+
+execute_process(COMMAND
+  ${CMAKE_COMMAND} -E create_symlink "${CMAKE_CURRENT_BINARY_DIR}/test.txt" "${CMAKE_CURRENT_BINARY_DIR}/abs.sym")
+file(READ_SYMLINK "${CMAKE_CURRENT_BINARY_DIR}/abs.sym" result)
+if(NOT result MATCHES "^.*/Tests/RunCMake/file/READ_SYMLINK-build/test\\.txt$")
+  message(SEND_ERROR "Absolute symlink is \"${result}\", should be \"*/Tests/RunCMake/file/READ_SYMLINK-build/test.txt\"")
+endif()
diff --git a/Tests/RunCMake/file/RunCMakeTest.cmake b/Tests/RunCMake/file/RunCMakeTest.cmake
index b9d76bf..b872824 100644
--- a/Tests/RunCMake/file/RunCMakeTest.cmake
+++ b/Tests/RunCMake/file/RunCMakeTest.cmake
@@ -55,6 +55,9 @@ run_cmake_command(GLOB-error-CONFIGURE_DEPENDS-SCRIPT_MODE ${CMAKE_COMMAND} -P
 if(NOT WIN32 OR CYGWIN)
   run_cmake(GLOB_RECURSE-cyclic-recursion)
   run_cmake(INSTALL-SYMLINK)
+  run_cmake(READ_SYMLINK)
+  run_cmake(READ_SYMLINK-noexist)
+  run_cmake(READ_SYMLINK-notsymlink)
 endif()
 
 if(RunCMake_GENERATOR STREQUAL "Ninja")